Title:
ENGINE OUTPUT CONTROLLER FOR WATER JET PROPULSION BOAT
Document Type and Number:
Japanese Patent JP2005016354
Kind Code:
A
Abstract:
To prevent high speed sailing in reverse travel by eliminating necessity for minute adjustment of an accelerator lever.
When a reverse lever 120 is operated to turn on a reverse switch 112, a command signal for a step motor 26 for adjusting opening of a throttle valve 12 is set so that opening of throttle is not increased even when opening of the accelerator lever 110 is increased. By increasing increase rate of opening of throttle in accordance with increase of opening of an accelerator ACC, fluctuation of throttle when opening of the accelerator is small is reduced to facilitate low speed running. Ignition time and air-fuel ratio may be adjusted instead of opening of throttle.
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Inventors:
KINOSHITA YOSHIMICHI
Application Number:
JP2003180009A
Publication Date:
January 20, 2005
Filing Date:
June 24, 2003
Export Citation:
Assignee:
YAMAHA MARINE CO LTD
International Classes:
B63B35/73; B63H21/21; B63H21/22; F02D29/02; F02D41/02; F02D41/04; B63H11/08; F02D43/00; F02P5/15; F02B61/04; F02D11/10; F02D41/24; (IPC1-7): F02D29/02; B63B35/73; B63H11/08; B63H21/21; F02D41/04; F02D43/00; F02P5/15
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu
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